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Stimulated Scattering of a Large Amplitude Electromagnetic Wave by the Eigenmodes of a Plasma Slab
Ist Teil von
Physica scripta, 1983-08, Vol.28 (2), p.214-216
Ort / Verlag
Stockholm: IOP Publishing
Erscheinungsjahr
1983
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
New results are presented from a theoretical investigation of the scattering of an electromagnetic pump wave that is normally incident on a plasma slab. In the case considered here, the leaking surface wave eigenmode represents the scattered radiation. The generation of harmonics in the scattered wave will thus be responsible for the saturation of the wave intensities. It is shown that a large-amplitude electromagnetic pump wave can be scattered in a nonlinear process where both the low-frequency and high-frequency oscillations are eigenmodes of the plasma slab. The second harmonic generation that occurs in this case leads to efficient saturation of the scattering instability. It is pointed out that other mechanisms, for example, the screening of the pump wave by the surface mode current, may also contribute significantly to the establishment of the stationary wave.